yellow onion onion (raw) yellow onion (raw) A variety of dry onion with a strong flavour. It has a greenish-white, light yellow, or white inside; its layers of papery skin have a yellow-brown or pale golden colour. It is higher in sulphur content than the white onion, which gives it a stronger, more complex flavour. Allium cepa L. SIREN DB annotation: * whole, natural shape FOODON:03430150 * not heat-treated FOODON:03440003 * root, tuber or bulb FOODON:03420238 brown onion yellow onion ready for release